You have this gigantic gun ready to blow that fucker into spray! You wait two hours and fall asleep. You awake with a start when the fucker starts unlocking his door. You wait till the door is one third open and you pull the trigger. Nothing happens. You forgot to take it off safety. He draws his hand gun from his jacket. You drop the gun and put your hands up. He calls the cops on his cell phone while holding the gun on you.